UNIX for Advanced & Expert Users

In one of the assignment which i am working on, i am am trying to insert keys and values into BDB by reading the input records from a input file as below.
Here keys i am inserting as character buffer and for values i am dynamically allocating the memory using malloc and then inserting into bdb.
But when i try to retireve the inserted values from BDB i am geting only the latest record for Value.

//KEY
char key[512];

//VALUE
typedef struct
{
char *remValues[10];
}valuestr;

static valuestr vstr;
Dbc *dbcObj;
Dbt dbtKey,dbtValue;

// I am dynamically allocating memory for Value str using malloc example as below.
vstr.remValues[0] = (char *)malloc(50);

while(!feof(inFile))
{
//getting key from input file
strcpy(buf, <value1>); //value1 comes from input file

//getting Value from input file
memset(vstr.remValues[0],0,50);
sprintf(vstr.remValues[0],"%d",<value2>); //value2 comes from input file

...........
...........

//Putting values into BDB

dbtKey.set_data((char*) buf);
dbtKey.set_size(strlen(buf));

dbtValue.set_data((valuestr*)&vstr);
dbtValue.set_size(sizeof(valuestr));

int ret = dbObj.put(0,&dbtKey,&dbtValue,DB_NOOVERWRITE);
}

But when i try to retrive the values from BDB its giving proper values for Key but for Value i am getting only the latest value from input file.
Below is the Key value retreival code.

dbObj.cursor(NULL,&dbcObj,0);
char keys[100];
valuestr *values;
while(dbcObj->get(&dbtKey,&dbtValue,DB_NEXT)==0)
{
memset(keys,0,sizeof(keys));
strncpy(keys,(char *)dbtKey.get_data(),strlen(buf));
values = (valuestr *)dbtValue.get_data();
//printing values and keys on to console
}

Can you please suggest how to resolve this ?

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